/* SSA operand management for trees.
- Copyright (C) 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2005 Free Software Foundation, Inc.
This file is part of GCC.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#ifndef GCC_TREE_SSA_OPERANDS_H
#define GCC_TREE_SSA_OPERANDS_H
/* This represents a pointer to a DEF operand. */
-typedef struct def_operand_ptr GTY(())
-{
- tree * GTY((skip(""))) def;
-} def_operand_p;
+typedef tree *def_operand_p;
/* This represents a pointer to a USE operand. */
-typedef struct use_operand_ptr GTY(())
-{
- tree * GTY((skip(""))) use;
-} use_operand_p;
+typedef ssa_use_operand_t *use_operand_p;
-extern def_operand_p NULL_DEF_OPERAND_P;
-extern use_operand_p NULL_USE_OPERAND_P;
+/* NULL operand types. */
+#define NULL_USE_OPERAND_P NULL
+#define NULL_DEF_OPERAND_P NULL
/* This represents the DEF operands of a stmt. */
-typedef struct def_optype_d GTY(())
+struct def_optype_d
{
- unsigned num_defs;
- struct def_operand_ptr GTY((length("%h.num_defs"))) defs[1];
-} def_optype_t;
-
-typedef def_optype_t *def_optype;
+ struct def_optype_d *next;
+ tree *def_ptr;
+};
+typedef struct def_optype_d *def_optype_p;
/* This represents the USE operands of a stmt. */
-typedef struct use_optype_d GTY(())
+struct use_optype_d
{
- unsigned num_uses;
- struct use_operand_ptr GTY((length("%h.num_uses"))) uses[1];
-} use_optype_t;
+ struct use_optype_d *next;
+ struct ssa_use_operand_d use_ptr;
+};
+typedef struct use_optype_d *use_optype_p;
-typedef use_optype_t *use_optype;
-
-/* Operand type which stores a def and a use tree. */
-typedef struct v_def_use_operand_type GTY(())
+typedef struct vuse_element_d
{
- tree def;
- tree use;
-} v_def_use_operand_type_t;
+ tree use_var;
+ struct ssa_use_operand_d use_ptr;
+} vuse_element_t;
-/* This represents the MAY_DEFS for a stmt. */
-typedef struct v_may_def_optype_d GTY(())
+typedef struct vuse_vec_d
{
- unsigned num_v_may_defs;
- struct v_def_use_operand_type GTY((length ("%h.num_v_may_defs")))
- v_may_defs[1];
-} v_may_def_optype_t;
-
-typedef v_may_def_optype_t *v_may_def_optype;
-
-/* This represents the VUSEs for a stmt. */
-typedef struct vuse_optype_d GTY(())
+ int num_vuse;
+ vuse_element_t uses[1];
+} vuse_vec_t;
+typedef struct vuse_vec_d *vuse_vec_p;
+
+#define VUSE_VECT_NUM_ELEM(V) (V).num_vuse
+#define VUSE_VECT_ELEMENT_NC(V,X) (V).uses[(X)]
+#define VUSE_ELEMENT_PTR_NC(V,X) (&(VUSE_VECT_ELEMENT_NC ((V),(X)).use_ptr))
+#define VUSE_ELEMENT_VAR_NC(V,X) (VUSE_VECT_ELEMENT_NC ((V),(X)).use_var)
+
+#ifdef ENABLE_CHECKING
+#define VUSE_VECT_ELEMENT(V,X) \
+ (gcc_assert ((X) >= 0 && (X) < VUSE_VECT_NUM_ELEM (V)), \
+ VUSE_VECT_ELEMENT_NC (V,X))
+
+#define VUSE_ELEMENT_PTR(V,X) \
+ (gcc_assert ((X) >= 0 && (X) < VUSE_VECT_NUM_ELEM (V)), \
+ VUSE_ELEMENT_PTR_NC (V, X))
+
+#define SET_VUSE_VECT_ELEMENT(V,X,N) \
+ (gcc_assert ((X) >= 0 && (X) < VUSE_VECT_NUM_ELEM (V)), \
+ VUSE_VECT_ELEMENT_NC (V,X) = (N))
+
+#define SET_VUSE_ELEMENT_VAR(V,X,N) \
+ (gcc_assert ((X) >= 0 && (X) < VUSE_VECT_NUM_ELEM (V)), \
+ VUSE_VECT_ELEMENT_NC ((V),(X)).use_var = (N))
+
+#define SET_VUSE_ELEMENT_PTR(V,X,N) \
+ (gcc_assert ((X) >= 0 && (X) < VUSE_VECT_NUM_ELEM (V)), \
+ VUSE_ELEMENT_PTR_NC (V, X) = (N))
+#else
+#define VUSE_VECT_ELEMENT(V,X) VUSE_VECT_ELEMENT_NC(V,X)
+#define VUSE_ELEMENT_PTR(V,X) VUSE_ELEMENT_PTR_NC(V,X)
+#define SET_VUSE_VECT_ELEMENT(V,X,N) VUSE_VECT_ELEMENT_NC(V,X) = (N)
+#define SET_VUSE_ELEMENT_PTR(V,X,N) VUSE_ELEMENT_PTR_NC(V,X) = (N)
+#define SET_VUSE_ELEMENT_VAR(V,X,N) VUSE_VECT_ELEMENT_NC ((V),(X)).use_var = (N)
+#endif
+
+#define VUSE_ELEMENT_VAR(V,X) (VUSE_VECT_ELEMENT ((V),(X)).use_var)
+
+/* This represents the virtual ops of a stmt. */
+struct voptype_d
{
- unsigned num_vuses;
- tree GTY((length ("%h.num_vuses"))) vuses[1];
-} vuse_optype_t;
-
-typedef vuse_optype_t *vuse_optype;
-
-/* This represents the V_MUST_DEFS for a stmt. */
-typedef struct v_must_def_optype_d GTY(())
+ struct voptype_d *next;
+ tree def_var;
+ vuse_vec_t usev;
+};
+typedef struct voptype_d *voptype_p;
+
+/* This structure represents a variable sized buffer which is allocated by the
+ operand memory manager. Operands are suballocated out of this block. The
+ MEM array varies in size. */
+
+struct ssa_operand_memory_d GTY((chain_next("%h.next")))
{
- unsigned num_v_must_defs;
- v_def_use_operand_type_t GTY((length("%h.num_v_must_defs"))) v_must_defs[1];
-} v_must_def_optype_t;
-
-typedef v_must_def_optype_t *v_must_def_optype;
-
-/* This represents the operand cache fora stmt. */
-typedef struct stmt_operands_d GTY(())
+ struct ssa_operand_memory_d *next;
+ char mem[1];
+};
+
+/* Number of different size free buckets for virtual operands. */
+#define NUM_VOP_FREE_BUCKETS 29
+
+/* Per-function operand caches. */
+struct ssa_operands GTY(()) {
+ struct ssa_operand_memory_d *operand_memory;
+ unsigned operand_memory_index;
+ /* Current size of the operand memory buffer. */
+ unsigned int ssa_operand_mem_size;
+
+ bool ops_active;
+
+ struct def_optype_d * GTY ((skip (""))) free_defs;
+ struct use_optype_d * GTY ((skip (""))) free_uses;
+ struct voptype_d * GTY ((skip (""))) vop_free_buckets[NUM_VOP_FREE_BUCKETS];
+ VEC(tree,heap) * GTY ((skip (""))) mpt_table;
+};
+
+/* This represents the operand cache for a stmt. */
+struct stmt_operands_d
{
/* Statement operands. */
- struct def_optype_d * GTY (()) def_ops;
- struct use_optype_d * GTY (()) use_ops;
-
- /* Virtual operands (V_MAY_DEF, VUSE, and V_MUST_DEF). */
- struct v_may_def_optype_d * GTY (()) v_may_def_ops;
- struct vuse_optype_d * GTY (()) vuse_ops;
- struct v_must_def_optype_d * GTY (()) v_must_def_ops;
-} stmt_operands_t;
-
-typedef stmt_operands_t *stmt_operands_p;
-
-#define USE_FROM_PTR(OP) get_use_from_ptr (OP)
-#define DEF_FROM_PTR(OP) get_def_from_ptr (OP)
-#define SET_USE(OP, V) ((*((OP).use)) = (V))
-#define SET_DEF(OP, V) ((*((OP).def)) = (V))
-
-
-#define USE_OPS(ANN) get_use_ops (ANN)
-#define STMT_USE_OPS(STMT) get_use_ops (stmt_ann (STMT))
-#define NUM_USES(OPS) ((OPS) ? (OPS)->num_uses : 0)
-#define USE_OP_PTR(OPS, I) get_use_op_ptr ((OPS), (I))
-#define USE_OP(OPS, I) (USE_FROM_PTR (USE_OP_PTR ((OPS), (I))))
-#define SET_USE_OP(OPS, I, V) (SET_USE (USE_OP_PTR ((OPS), (I)), (V)))
-
-
-
-#define DEF_OPS(ANN) get_def_ops (ANN)
-#define STMT_DEF_OPS(STMT) get_def_ops (stmt_ann (STMT))
-#define NUM_DEFS(OPS) ((OPS) ? (OPS)->num_defs : 0)
-#define DEF_OP_PTR(OPS, I) get_def_op_ptr ((OPS), (I))
-#define DEF_OP(OPS, I) (DEF_FROM_PTR (DEF_OP_PTR ((OPS), (I))))
-#define SET_DEF_OP(OPS, I, V) (SET_DEF (DEF_OP_PTR ((OPS), (I)), (V)))
-
-
-
-#define V_MAY_DEF_OPS(ANN) get_v_may_def_ops (ANN)
-#define STMT_V_MAY_DEF_OPS(STMT) get_v_may_def_ops (stmt_ann(STMT))
-#define NUM_V_MAY_DEFS(OPS) ((OPS) ? (OPS)->num_v_may_defs : 0)
-#define V_MAY_DEF_RESULT_PTR(OPS, I) get_v_may_def_result_ptr ((OPS), (I))
-#define V_MAY_DEF_RESULT(OPS, I) \
- (DEF_FROM_PTR (V_MAY_DEF_RESULT_PTR ((OPS), (I))))
-#define SET_V_MAY_DEF_RESULT(OPS, I, V) \
- (SET_DEF (V_MAY_DEF_RESULT_PTR ((OPS), (I)), (V)))
-#define V_MAY_DEF_OP_PTR(OPS, I) get_v_may_def_op_ptr ((OPS), (I))
-#define V_MAY_DEF_OP(OPS, I) \
- (USE_FROM_PTR (V_MAY_DEF_OP_PTR ((OPS), (I))))
-#define SET_V_MAY_DEF_OP(OPS, I, V) \
- (SET_USE (V_MAY_DEF_OP_PTR ((OPS), (I)), (V)))
-
-
-#define VUSE_OPS(ANN) get_vuse_ops (ANN)
-#define STMT_VUSE_OPS(STMT) get_vuse_ops (stmt_ann(STMT))
-#define NUM_VUSES(OPS) ((OPS) ? (OPS)->num_vuses : 0)
-#define VUSE_OP_PTR(OPS, I) get_vuse_op_ptr ((OPS), (I))
-#define VUSE_OP(OPS, I) (USE_FROM_PTR (VUSE_OP_PTR ((OPS), (I))))
-#define SET_VUSE_OP(OPS, I, V) (SET_USE (VUSE_OP_PTR ((OPS), (I)), (V)))
-
-
-#define V_MUST_DEF_OPS(ANN) get_v_must_def_ops (ANN)
-#define STMT_V_MUST_DEF_OPS(STMT) get_v_must_def_ops (stmt_ann (STMT))
-#define NUM_V_MUST_DEFS(OPS) ((OPS) ? (OPS)->num_v_must_defs : 0)
-#define V_MUST_DEF_RESULT_PTR(OPS, I) get_v_must_def_result_ptr ((OPS), (I))
-#define V_MUST_DEF_RESULT(OPS, I) \
- (DEF_FROM_PTR (V_MUST_DEF_RESULT_PTR ((OPS), (I))))
-#define SET_V_MUST_DEF_RESULT(OPS, I, V) \
- (SET_DEF (V_MUST_DEF_RESULT_PTR ((OPS), (I)), (V)))
-#define V_MUST_DEF_KILL_PTR(OPS, I) get_v_must_def_kill_ptr ((OPS), (I))
-#define V_MUST_DEF_KILL(OPS, I) (USE_FROM_PTR (V_MUST_DEF_KILL_PTR ((OPS), (I))))
-#define SET_V_MUST_DEF_KILL(OPS, I, V) (SET_USE (V_MUST_DEF_KILL_PTR ((OPS), (I)), (V)))
+ struct def_optype_d * def_ops;
+ struct use_optype_d * use_ops;
+
+ /* Virtual operands (VDEF, VUSE). */
+ struct voptype_d * vdef_ops;
+ struct voptype_d * vuse_ops;
+
+ /* Sets of memory symbols loaded and stored. */
+ bitmap stores;
+ bitmap loads;
+};
+
+typedef struct stmt_operands_d *stmt_operands_p;
+
+#define USE_FROM_PTR(PTR) get_use_from_ptr (PTR)
+#define DEF_FROM_PTR(PTR) get_def_from_ptr (PTR)
+#define SET_USE(USE, V) set_ssa_use_from_ptr (USE, V)
+#define SET_DEF(DEF, V) ((*(DEF)) = (V))
+
+#define USE_STMT(USE) (USE)->stmt
+
+#define DEF_OPS(STMT) (stmt_ann (STMT)->operands.def_ops)
+#define USE_OPS(STMT) (stmt_ann (STMT)->operands.use_ops)
+#define VUSE_OPS(STMT) (stmt_ann (STMT)->operands.vuse_ops)
+#define VDEF_OPS(STMT) (stmt_ann (STMT)->operands.vdef_ops)
+
+#define LOADED_SYMS(STMT) (stmt_ann (STMT)->operands.loads)
+#define STORED_SYMS(STMT) (stmt_ann (STMT)->operands.stores)
+
+#define USE_OP_PTR(OP) (&((OP)->use_ptr))
+#define USE_OP(OP) (USE_FROM_PTR (USE_OP_PTR (OP)))
+
+#define DEF_OP_PTR(OP) ((OP)->def_ptr)
+#define DEF_OP(OP) (DEF_FROM_PTR (DEF_OP_PTR (OP)))
+
+#define VUSE_OP_PTR(OP,X) VUSE_ELEMENT_PTR ((OP)->usev, (X))
+#define VUSE_OP(OP,X) VUSE_ELEMENT_VAR ((OP)->usev, (X))
+#define SET_VUSE_OP(OP,X,N) SET_VUSE_ELEMENT_VAR ((OP)->usev, (X), (N))
+#define VUSE_NUM(OP) VUSE_VECT_NUM_ELEM ((OP)->usev)
+#define VUSE_VECT(OP) &((OP)->usev)
+
+#define VDEF_RESULT_PTR(OP) (&((OP)->def_var))
+#define VDEF_RESULT(OP) ((OP)->def_var)
+#define VDEF_OP_PTR(OP,X) VUSE_OP_PTR (OP, X)
+#define VDEF_OP(OP,X) VUSE_OP (OP, X)
+#define SET_VDEF_OP(OP,X,N) SET_VUSE_OP (OP, X, N)
+#define VDEF_NUM(OP) VUSE_VECT_NUM_ELEM ((OP)->usev)
+#define VDEF_VECT(OP) &((OP)->usev)
#define PHI_RESULT_PTR(PHI) get_phi_result_ptr (PHI)
#define PHI_RESULT(PHI) DEF_FROM_PTR (PHI_RESULT_PTR (PHI))
#define SET_PHI_ARG_DEF(PHI, I, V) \
SET_USE (PHI_ARG_DEF_PTR ((PHI), (I)), (V))
#define PHI_ARG_DEF_FROM_EDGE(PHI, E) \
- PHI_ARG_DEF ((PHI), \
- phi_arg_from_edge ((PHI),(E)))
+ PHI_ARG_DEF ((PHI), (E)->dest_idx)
#define PHI_ARG_DEF_PTR_FROM_EDGE(PHI, E) \
- PHI_ARG_DEF_PTR ((PHI), \
- phi_arg_from_edge ((PHI),(E)))
+ PHI_ARG_DEF_PTR ((PHI), (E)->dest_idx)
+#define PHI_ARG_INDEX_FROM_USE(USE) phi_arg_index_from_use (USE)
+
+extern struct voptype_d *realloc_vdef (struct voptype_d *, int);
+extern struct voptype_d *realloc_vuse (struct voptype_d *, int);
extern void init_ssa_operands (void);
extern void fini_ssa_operands (void);
-extern void get_stmt_operands (tree);
-extern void copy_virtual_operands (tree, tree);
-extern void create_ssa_artficial_load_stmt (stmt_operands_p, tree);
+extern void free_ssa_operands (stmt_operands_p);
+extern void update_stmt_operands (tree);
+extern bool verify_imm_links (FILE *f, tree var);
-extern bool ssa_call_clobbered_cache_valid;
-extern bool ssa_ro_call_cache_valid;
+extern void copy_virtual_operands (tree, tree);
+extern void create_ssa_artificial_load_stmt (tree, tree);
+
+extern void dump_immediate_uses (FILE *file);
+extern void dump_immediate_uses_for (FILE *file, tree var);
+extern void debug_immediate_uses (void);
+extern void debug_immediate_uses_for (tree var);
+extern void dump_decl_set (FILE *, bitmap);
+extern void debug_decl_set (bitmap);
+
+extern bool ssa_operands_active (void);
+
+extern void add_to_addressable_set (tree, bitmap *);
+extern void push_stmt_changes (tree *);
+extern void pop_stmt_changes (tree *);
+extern void discard_stmt_changes (tree *);
+
+enum ssa_op_iter_type {
+ ssa_op_iter_none = 0,
+ ssa_op_iter_tree,
+ ssa_op_iter_use,
+ ssa_op_iter_def,
+ ssa_op_iter_vdef
+};
/* This structure is used in the operand iterator loops. It contains the
items required to determine which operand is retrieved next. During
typedef struct ssa_operand_iterator_d
{
- int num_use;
- int num_def;
- int num_vuse;
- int num_v_mayu;
- int num_v_mayd;
- int num_v_mustu;
- int num_v_mustd;
- int use_i;
- int def_i;
- int vuse_i;
- int v_mayu_i;
- int v_mayd_i;
- int v_mustu_i;
- int v_mustd_i;
- stmt_operands_p ops;
+ def_optype_p defs;
+ use_optype_p uses;
+ voptype_p vuses;
+ voptype_p vdefs;
+ voptype_p mayuses;
+ enum ssa_op_iter_type iter_type;
+ int phi_i;
+ int num_phi;
+ tree phi_stmt;
bool done;
+ int vuse_index;
+ int mayuse_index;
} ssa_op_iter;
/* These flags are used to determine which operands are returned during
#define SSA_OP_USE 0x01 /* Real USE operands. */
#define SSA_OP_DEF 0x02 /* Real DEF operands. */
#define SSA_OP_VUSE 0x04 /* VUSE operands. */
-#define SSA_OP_VMAYUSE 0x08 /* USE portion of V_MAY_DEFS. */
-#define SSA_OP_VMAYDEF 0x10 /* DEF portion of V_MAY_DEFS. */
-#define SSA_OP_VMUSTDEF 0x20 /* V_MUST_DEF definitions. */
-#define SSA_OP_VMUSTDEFKILL 0x40 /* V_MUST_DEF kills. */
+#define SSA_OP_VMAYUSE 0x08 /* USE portion of VDEFS. */
+#define SSA_OP_VDEF 0x10 /* DEF portion of VDEFS. */
/* These are commonly grouped operand flags. */
#define SSA_OP_VIRTUAL_USES (SSA_OP_VUSE | SSA_OP_VMAYUSE)
-#define SSA_OP_VIRTUAL_DEFS (SSA_OP_VMAYDEF | SSA_OP_VMUSTDEF)
-#define SSA_OP_VIRTUAL_KILLS (SSA_OP_VMUSTDEFKILL)
-#define SSA_OP_ALL_VIRTUALS (SSA_OP_VIRTUAL_USES | SSA_OP_VIRTUAL_KILLS | SSA_OP_VIRTUAL_DEFS)
+#define SSA_OP_VIRTUAL_DEFS (SSA_OP_VDEF)
+#define SSA_OP_ALL_VIRTUALS (SSA_OP_VIRTUAL_USES | SSA_OP_VIRTUAL_DEFS)
#define SSA_OP_ALL_USES (SSA_OP_VIRTUAL_USES | SSA_OP_USE)
#define SSA_OP_ALL_DEFS (SSA_OP_VIRTUAL_DEFS | SSA_OP_DEF)
-#define SSA_OP_ALL_KILLS (SSA_OP_VIRTUAL_KILLS)
-#define SSA_OP_ALL_OPERANDS (SSA_OP_ALL_USES | SSA_OP_ALL_DEFS | SSA_OP_ALL_KILLS)
+#define SSA_OP_ALL_OPERANDS (SSA_OP_ALL_USES | SSA_OP_ALL_DEFS)
/* This macro executes a loop over the operands of STMT specified in FLAG,
returning each operand as a 'tree' in the variable TREEVAR. ITER is an
!op_iter_done (&(ITER)); \
DEFVAR = op_iter_next_def (&(ITER)))
-/* This macro executes a loop over the V_MAY_DEF operands of STMT. The def
- and use for each V_MAY_DEF is returned in DEFVAR and USEVAR.
+/* This macro executes a loop over the VDEF operands of STMT. The def
+ and use for each VDEF is returned in DEFVAR and USEVAR.
ITER is an ssa_op_iter structure used to control the loop. */
-#define FOR_EACH_SSA_MAYDEF_OPERAND(DEFVAR, USEVAR, STMT, ITER) \
- for (op_iter_init_maydef (&(ITER), STMT, &(USEVAR), &(DEFVAR)); \
+#define FOR_EACH_SSA_VDEF_OPERAND(DEFVAR, USEVAR, STMT, ITER) \
+ for (op_iter_init_vdef (&(ITER), STMT, &(USEVAR), &(DEFVAR)); \
!op_iter_done (&(ITER)); \
- op_iter_next_maydef (&(USEVAR), &(DEFVAR), &(ITER)))
+ op_iter_next_vdef (&(USEVAR), &(DEFVAR), &(ITER)))
-/* This macro executes a loop over the V_MUST_DEF operands of STMT. The def
- and kill for each V_MUST_DEF is returned in DEFVAR and KILLVAR.
- ITER is an ssa_op_iter structure used to control the loop. */
-#define FOR_EACH_SSA_MUSTDEF_OPERAND(DEFVAR, KILLVAR, STMT, ITER) \
- for (op_iter_init_mustdef (&(ITER), STMT, &(KILLVAR), &(DEFVAR)); \
+/* This macro will execute a loop over all the arguments of a PHI which
+ match FLAGS. A use_operand_p is always returned via USEVAR. FLAGS
+ can be either SSA_OP_USE or SSA_OP_VIRTUAL_USES or SSA_OP_ALL_USES. */
+#define FOR_EACH_PHI_ARG(USEVAR, STMT, ITER, FLAGS) \
+ for ((USEVAR) = op_iter_init_phiuse (&(ITER), STMT, FLAGS); \
+ !op_iter_done (&(ITER)); \
+ (USEVAR) = op_iter_next_use (&(ITER)))
+
+
+/* This macro will execute a loop over a stmt, regardless of whether it is
+ a real stmt or a PHI node, looking at the USE nodes matching FLAGS. */
+#define FOR_EACH_PHI_OR_STMT_USE(USEVAR, STMT, ITER, FLAGS) \
+ for ((USEVAR) = (TREE_CODE (STMT) == PHI_NODE \
+ ? op_iter_init_phiuse (&(ITER), STMT, FLAGS) \
+ : op_iter_init_use (&(ITER), STMT, FLAGS)); \
+ !op_iter_done (&(ITER)); \
+ (USEVAR) = op_iter_next_use (&(ITER)))
+
+/* This macro will execute a loop over a stmt, regardless of whether it is
+ a real stmt or a PHI node, looking at the DEF nodes matching FLAGS. */
+#define FOR_EACH_PHI_OR_STMT_DEF(DEFVAR, STMT, ITER, FLAGS) \
+ for ((DEFVAR) = (TREE_CODE (STMT) == PHI_NODE \
+ ? op_iter_init_phidef (&(ITER), STMT, FLAGS) \
+ : op_iter_init_def (&(ITER), STMT, FLAGS)); \
!op_iter_done (&(ITER)); \
- op_iter_next_mustdef (&(KILLVAR), &(DEFVAR), &(ITER)))
+ (DEFVAR) = op_iter_next_def (&(ITER)))
+
+/* This macro returns an operand in STMT as a tree if it is the ONLY
+ operand matching FLAGS. If there are 0 or more than 1 operand matching
+ FLAGS, then NULL_TREE is returned. */
+#define SINGLE_SSA_TREE_OPERAND(STMT, FLAGS) \
+ single_ssa_tree_operand (STMT, FLAGS)
+
+/* This macro returns an operand in STMT as a use_operand_p if it is the ONLY
+ operand matching FLAGS. If there are 0 or more than 1 operand matching
+ FLAGS, then NULL_USE_OPERAND_P is returned. */
+#define SINGLE_SSA_USE_OPERAND(STMT, FLAGS) \
+ single_ssa_use_operand (STMT, FLAGS)
+
+/* This macro returns an operand in STMT as a def_operand_p if it is the ONLY
+ operand matching FLAGS. If there are 0 or more than 1 operand matching
+ FLAGS, then NULL_DEF_OPERAND_P is returned. */
+#define SINGLE_SSA_DEF_OPERAND(STMT, FLAGS) \
+ single_ssa_def_operand (STMT, FLAGS)
+
+/* This macro returns TRUE if there are no operands matching FLAGS in STMT. */
+#define ZERO_SSA_OPERANDS(STMT, FLAGS) zero_ssa_operands (STMT, FLAGS)
+
+/* This macro counts the number of operands in STMT matching FLAGS. */
+#define NUM_SSA_OPERANDS(STMT, FLAGS) num_ssa_operands (STMT, FLAGS)
+
+extern tree get_mpt_for (tree);
+extern void dump_memory_partitions (FILE *);
+extern void debug_memory_partitions (void);
#endif /* GCC_TREE_SSA_OPERANDS_H */